Have you been trying to delete a folder or a file in your SD card or internal memory storage but keep receiving an error message that says “No permission to delete file“? The issue now have a fixed because the permission of the file or folder has been automatically set to “Read Only“.

Sometimes, you might have deleted the app but it will keep reappearing due to the permission (read only) it was automatically set on.

The instant solution is simple and straightforward, since you don’t need anything technical than only an app to fix the issue. The name of the app to use is called “Root folder“. With the help of the app, you can delete any stubborn files from your Android device storage.
Read more: https://techtip.com.ng/fix-no-permission-error/

The error occurs due to read only permission set by default in Android device. To fix the **error no permission to delete files or folder SD card in Android device (No root)**, try the following solution.
1. Modify the read only permission
2. Unmount the SD card
3. Use third party apps
Source : http://www.baatkar.com/2018/01/fix-no-permission-to-delete-file-sd-card-android-no-root.html